Locking means for internal-combustion motors.



(I. W. OBERT.

LOCKING MEANS FOR INTERNAL'COMBUSTION MOTORS.

APPLICATION FILED ms. 27, 1915.

1 208,822. v Patented Dec. 19, 1916.

WITNESSES IN T R Br W 7 ,c'asm w." oniifa'r; or 'BnooKLYN, NEW roan.

meme mansroenmnmr-connvsnwacross;-

Specification of Letters Ta'c'ent.

Patented Dec 19, 1916;

Application membm' w, 1915. SeriaINo. 10,976.

To all whom it may coh'aemr Be it kl'lOWIl;that-"I,"GASIN-W. OBERT, a

citizen of the United'States of,America'-,and; residing in the borough ofBrooklyn, city I of New York, county of Kings, and State of New York, have invented-certain; new

and useful Improvements inLocking- Means for Internal-Combustion Motors, of which the following is'a specification;

This invention-relates to improvements in r. V

, receiving slot 11;

locking means {for internal-combustion 'mo;-

' tors, so as to make'the same 'inoperative'to prevent unauthorized use-thereof.-

An object of'theqpre'sent inventiomis' to providesuch a device that the locking op: eration may be quickly and conveniently carried out without danger of injury to the operative parts. V v

A further objectvof-the device; is to-pro-' vide such a locking means as will be entirely secure and-reliableandsuch a means as could not readily be substituted.

With this purpose, the invention consistsof the novel features and combinations: of.

parts hereinafter more, fully described and pointed out in the claims.

In the accompanying drawings, Figure 1 is a sideelevational viewof; a gasolene engine showing the application of my inven-' tion thereto; '-Fig.-.-2 isja top plan-"view of myinventionappliedt'o the timer of an internal-combustion engine, with the top and key're'moved; Figs 3 is atransversesection taken on the line 3-3 of Fig. 2,, with the top and key in place; Fig.4. is a detail view of a suitable form of key; Fig. 5 is a sec tional view of another embodiment of the invention with parts'broken away; Fig. "6

is'a perspectiveview of a 'further modified I form; F ig; 7 is a sectional :detail' of the same; Fig. Sisaside elevational view of a still further modified form Fig. 9: is a top.;' plan viewof thesamewiththe top removed;

broken away of a still further modified" VldBd'rWl'fihf contact-- plates 2 and a brush f member -3.- A rotatable member .4.adapted to be securedrto the timer shaft 5 by the set screw 6," for driving the timer, is secured to the casing -7 by flanges 8 and 9lat th ef upper V andlower ends thereof. The" invention essentially consists in. locking this rotatable member to the brush-carrying member; during operation of the engine andbreaking-the' connection between the'two when it-is desir-able toprevent operation of the" motor and use ofthe same; For this purpose, the rotatable member 4 ispr-ovided with an up wardly-extendingspindle 10, having a key- The brush-carrying member. consists of a hub 12 adapted to fit over thespindle 10, and having a prolongation lii, the latterbe; ing provided with a longitudinal key-slot, 14 adapted to register with the key slot 11 of the spindle 10. A roller-carrying lever 15 in which is secured the brush or contact roller; 16 is pivoted between a yoked member 17 projecting laterally from the hub; 12. The lever 15 is held in position by a tension spring 18 secured between the end of the lever and a lug; 19 projecting from the opposite side of the hub 12. Aspring retained ball or plunger 20'is provided in the hub 12 for engaging in a notch or groove 21 on the spindle 10, for so securing the, same to the spindle 10 that the'hub 12'will notjump up or be" thrown byvibr'ation, out of engagement with the said spindle The key consists ofpa handle-22 and a blade 23 of any suitable design to fit the registering slots 11 and 14 ofthe hub 12 V and spindle 10. The design of this key may be varied in order to prevent the ready substitution thereof, locking devices as heretofore usedibeing easily operated or pick'ed-- by a nail, a wire, or other similar instrument.

In the modified form of my invention shown in Fig.5, a separate key is dispensed with, the same beingmade "integral with the brush-carrying'member. In this figure a rotary member 28 corresponds to the rotary member l: previously described and is pro- 'vided with ail-upward spindle '27 having a key-notch or slot 29 andthe brush carrying member 24 comprises a hubhaving'a socket 25 adapted to fit over the spindle 27. The hub is provided at the inner end of its socket with a projection 26 which engages the slot or notch 29 of the spindle 27 and operates to lock said brush carrying member to said spindle.

The hub 24is provided with a spring-locking device 20 whichengages an annular groove or notch 21 "on the spindle 27 and yieldably holds the brush carrying member on said spindle.

In Fig. 6 is shown an embodiment of my invention in another type of ignition apparatus, namely, of the distributer type, embracing a primary current circuit breaker or interrupter mechanism, in conjunction with a secondary current distributer. In such apparatus, of which Figs. 6 and 7 are representatives, both the primary current interrupter and the secondary current distributer are mounted on the same shaft, and they act together as the timing element for the motor. In the embodiment here shown,

- my invention is shown applied to the secondary distributer element, although this is not to be considered a limitation of the invention, as it could by a slight modification to the mechanism be applied to the primary current interrupter element just as well. In this form of my invention shown in Fig. 6, the primary current circuit interrupter consists of a triangular pivot piece disposed on a flattened portion 31 of the revolving shaft 32, which pivot piece is tripped by projections 33 on the plate 34, corresponding in number to the number of cylinders of the engine. lVhen so tripped, the upper end of the pivot piece 30 contacts with the under side of a spring-pressed disk 35, and raises the same against the action of the coil spring 36. Immediately the pivot piece passes over the projection 33, the disk is caused to drop to its initial position by action of the spring 36, and at the same time one of the projections 37 provided on its periphery presses against the lip 38 of the circuit breaker spring 39, causing a platinum point 40 on the same to contact with a platinum point 41 on the circuit breaker post 42, thereby momentarily closing the primary circuit. This construction as just described in detail does not form any part of my invention, but is typical of one of the approved forms, my

' invention consisting in the application of the improvements described to this and other approved forms.

Mounted on the insulated revolving stem 43' of the shaft 32 is a distributer 44, secondary current passing into it through a contact I member 45 carried on its top. A hard rubher shell or casing 46 is provided circumferentially at its upper end at the interior thereof with terminals 47 corresponding in 8 number to the cylinders of the engine, and

adapted to contact with the contact member 45. The distributer 44 has a recessed portion 48 therein, into which the upper end of the stem 43 projects. A key-receiving slot 49 is provided in the upper end of the stem, and a key-receiving passage 50 is provided in the distributer, registering with the said slot 49, into which a suitable key 51 is adapted to be fitted. The distributer 44 revolves with the shaft when the key is in place, and

turns free when the same is removed, thereby making the engine inoperative.

One of the other approved forms is shown in Figs. 8 and 9, in which the primary current interrupter consists of a revolving portion 52 adapted to be secured to a rotating shaft by means of screws 53, and is provided with a top portion 54 of fiber or hard rubber threaded into the flange 55, and four contact-rollers 56 evenly spaced around the periphery of the said revolving portion 52. A spring-controlled trip member 58 is normally held slightly within the circumference formed by the revolution of the rollers 56, so that during operation of the timer the said trip member is contacted by each of the said rollers, causing the primary current circuit to be momentarily closed. The top portion 54 is provided with an annular flange 57, into which a distributer member 58 is disposed and adapted to be rotated thereby. A contact member 59 is provided on the top of the distributer, which contacts with terminals 60, corresponding in number to the cylinders of the engine, which are evenly spaced around the inner surface of the hard rubber casing 61. A second spring contact member 62 secured to a post 63 presses on the contact member 59, and said post is connected to a high tension secondary coil. A key-shaped passage 66 is provided in the distributer 58, and a correspondingly shaped recess 65 is provided in the top portion 54, into which a key 66 having an insulated handle 67 is adapted to be fitted to make the parts revolve together. It is obvious that upon removal of the said key, the parts will be inoperative.

In the form of construction shown in Fig. 10, a top portion 68 of hard rubber or fiber is securely mounted on the revolving portion 52, and is provided on its top with a contact member 69, which contacts with terminals 70 provided on the rubber or fiber casing 71. A high tension connection 72 from the secondary coil is secured on the casing 72, and is provided with a key-receiving passage 73. A key 74 having a fiberhandle 7 5 is adapted to be inserted into the said passage and into a recess 76 provided in the top portion, thereby completing the proper electrical connection for the operation of the device.

The operation of my invention is as follows: During the operation of the timer, the key is inserted, as shown in Fig. 3, the timer then revolving with the shaft in the usual manner. When it is desired to make the engine inoperative, the key is withdrawn and connection between the shaft and the timer broken. In the form shown in Fig. 5, the whole portion 24 is removed and the connection broken. When the engine is to be operated, said portion is replaced on the shaft 27 and the two then revolve together.

The operation of the form shown in Figs. 6

and 9. is similar to that shown in my first form, the key being simply fitted into the passages and the slots provided when the engine is to be operated, and removed when it is desired to make the same inoperative.

In the form shown in Fig. 10, the key is removed when the engine is to be made inoperative, thereby breaking the electrical connection; and is in place and serves to close the circuit during operation of the same.

I have shown preferred and satisfactory forms ofmy invention, but it is obvious that changes may be made in the same without departing from the spirit and scope thereof, except as may be required by the claims.

I claim 1. An improved locking means for inter-,

ble timer-shaft, a rotatable member secured to said shaft, a projecting spindle on said rotatable member, an ignition device, provided with a hub fitting said projecting spindle, and means for locking said projecting spindle and ignition device together.

4. An improved locking means for internal combustion engines, comprising a rotatable timer-shaft, a rotatable member secured to said timer-shaft, a projecting spindle on said rotatable member provided with a keyreceiving slot, an ignition device comprising nal-combustion engines, comprising a rotatable timer-shaft, an ignition device having a timing element, and means connecting with said timing element of the ignition device for enabling the timing element to be operated, and means for detachably holding said first-named means. I

6. The combination of a rotary timer shaft, a boss fixed to said shaft and provided with a spindle alined therewith and having a key recess, a fixed timer casing having contact plates, a rotary brush member comprising a hub adapted to fit said spindle and provided with a contact brush adapted to engage said contact plates, said hub having a key-slot adapted to register with the keyslot of said spindle, and a key adapted to enter said slots and lock said rotary brush member in connection with said timer shaft.

7. In a timer for an internal combustion engine the combination of a rotary timer shaft, a support in fixed relation to said shaft, a contact member loose on said support, a brush member, said contact member and brush member having registering recesses, and a detachable key adapted to engage said recesses to clutch and unclutch said brush member and support.

In testimony, that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

GASIN W. OBERT.

Witnesses Jos. BISBANO, F. Hose.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

